EP0657821A3 - Memory monitoring circuit for detecting unauthorized memory access. - Google Patents
Memory monitoring circuit for detecting unauthorized memory access. Download PDFInfo
- Publication number
- EP0657821A3 EP0657821A3 EP94119490A EP94119490A EP0657821A3 EP 0657821 A3 EP0657821 A3 EP 0657821A3 EP 94119490 A EP94119490 A EP 94119490A EP 94119490 A EP94119490 A EP 94119490A EP 0657821 A3 EP0657821 A3 EP 0657821A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- memory
- monitoring circuit
- detecting unauthorized
- memory access
- access
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
- G06F12/1425—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block
- G06F12/1433—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block for a module or a part of a module
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16381193A | 1993-12-09 | 1993-12-09 | |
US163811 | 1993-12-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0657821A2 EP0657821A2 (en) | 1995-06-14 |
EP0657821A3 true EP0657821A3 (en) | 1996-04-17 |
EP0657821B1 EP0657821B1 (en) | 2002-03-13 |
Family
ID=22591680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94119490A Expired - Lifetime EP0657821B1 (en) | 1993-12-09 | 1994-12-09 | Memory monitoring circuit for detecting unauthorized memory access |
Country Status (4)
Country | Link |
---|---|
US (1) | US5729716A (en) |
EP (1) | EP0657821B1 (en) |
CA (1) | CA2137504C (en) |
DE (1) | DE69430102T2 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6615344B1 (en) | 1999-09-03 | 2003-09-02 | Infineon Technologies North America Corp. | System and method for tracking selectively enabling modules used in an integrated processor using a tracking register providing configuration information to an external pin |
US7146477B1 (en) * | 2003-04-18 | 2006-12-05 | Advanced Micro Devices, Inc. | Mechanism for selectively blocking peripheral device accesses to system memory |
US8250295B2 (en) | 2004-01-05 | 2012-08-21 | Smart Modular Technologies, Inc. | Multi-rank memory module that emulates a memory module having a different number of ranks |
US7916574B1 (en) | 2004-03-05 | 2011-03-29 | Netlist, Inc. | Circuit providing load isolation and memory domain translation for memory module |
US7289386B2 (en) | 2004-03-05 | 2007-10-30 | Netlist, Inc. | Memory module decoder |
US8032727B2 (en) * | 2004-07-23 | 2011-10-04 | Broadcom Corporation | Method and system for locking OTP memory bits after programming |
DE102005014837B4 (en) * | 2004-08-02 | 2007-08-30 | Mahltig, Holger | Security module and method for controlling and controlling a data traffic of a personal computer |
CN100375060C (en) * | 2005-06-20 | 2008-03-12 | 中兴通讯股份有限公司 | Embedded system and real-time monitoring and processing method thereof |
US8154901B1 (en) | 2008-04-14 | 2012-04-10 | Netlist, Inc. | Circuit providing load isolation and noise reduction |
US8516185B2 (en) | 2009-07-16 | 2013-08-20 | Netlist, Inc. | System and method utilizing distributed byte-wise buffers on a memory module |
US9128632B2 (en) | 2009-07-16 | 2015-09-08 | Netlist, Inc. | Memory module with distributed data buffers and method of operation |
WO2012061633A2 (en) | 2010-11-03 | 2012-05-10 | Netlist, Inc. | Method and apparatus for optimizing driver load in a memory package |
US11144634B2 (en) * | 2016-09-28 | 2021-10-12 | Nanolock Security Inc. | Access control for integrated circuit devices |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0194660A2 (en) * | 1985-03-12 | 1986-09-17 | Pitney Bowes Inc. | Electronic postage meter having a memory map decoder and an illegal-memory-access warning signal, respectively |
EP0223130A2 (en) * | 1985-10-31 | 1987-05-27 | Alcatel Satmam | Electronic postage meter circuitry |
EP0527010A2 (en) * | 1991-08-05 | 1993-02-10 | Ascom Hasler Mailing Systems AG | Protection system for critical memory information |
EP0608060A1 (en) * | 1993-01-11 | 1994-07-27 | Ascom Autelca Ltd. | Data protection apparatus and method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4424573A (en) * | 1981-02-26 | 1984-01-03 | Pitney Bowes Inc. | System for entering a postage meter serial number into a nonvolatile memory from an external channel after assembly of the meter |
US4701656A (en) * | 1983-06-13 | 1987-10-20 | Intratechnology Associates, Inc. | Electromechanical device with slotted stator |
US4710882A (en) * | 1985-03-12 | 1987-12-01 | Pitney Bowes Inc. | Electronic postage meter having a nonvolatile memory selection means |
US4747057A (en) * | 1985-03-12 | 1988-05-24 | Pitney Bowes Inc. | Electronic postage meter having power up and power down protection circuitry |
US4998203A (en) * | 1985-03-12 | 1991-03-05 | Digiulio Peter C | Postage meter with a non-volatile memory security circuit |
US4817004A (en) * | 1985-10-16 | 1989-03-28 | Pitney Bowes Inc. | Electronic postage meter operating system |
US5179540A (en) * | 1985-11-08 | 1993-01-12 | Harris Corporation | Programmable chip enable logic function |
US4785469A (en) * | 1987-02-12 | 1988-11-15 | Advanced Micro Devices, Inc. | Processor to peripheral interface for asynchronous or synchronous applications |
CN1045655A (en) * | 1988-11-23 | 1990-09-26 | 约翰弗兰克制造公司 | The kernel test interface and the method for system's automatic diagnosis |
-
1994
- 1994-12-07 CA CA002137504A patent/CA2137504C/en not_active Expired - Fee Related
- 1994-12-09 DE DE69430102T patent/DE69430102T2/en not_active Expired - Fee Related
- 1994-12-09 EP EP94119490A patent/EP0657821B1/en not_active Expired - Lifetime
-
1996
- 1996-05-15 US US08/648,454 patent/US5729716A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0194660A2 (en) * | 1985-03-12 | 1986-09-17 | Pitney Bowes Inc. | Electronic postage meter having a memory map decoder and an illegal-memory-access warning signal, respectively |
EP0223130A2 (en) * | 1985-10-31 | 1987-05-27 | Alcatel Satmam | Electronic postage meter circuitry |
EP0527010A2 (en) * | 1991-08-05 | 1993-02-10 | Ascom Hasler Mailing Systems AG | Protection system for critical memory information |
EP0608060A1 (en) * | 1993-01-11 | 1994-07-27 | Ascom Autelca Ltd. | Data protection apparatus and method |
Also Published As
Publication number | Publication date |
---|---|
CA2137504A1 (en) | 1995-06-10 |
EP0657821A2 (en) | 1995-06-14 |
EP0657821B1 (en) | 2002-03-13 |
US5729716A (en) | 1998-03-17 |
DE69430102D1 (en) | 2002-04-18 |
DE69430102T2 (en) | 2002-10-31 |
CA2137504C (en) | 1998-08-25 |
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